The Artist has requested Critique on this Artwork

Hmm. The focal length of the lens could be set higher to give more 'depth'. I'd also suggest that the hair isn't streaming behind her like it would if the 'surferette' was actually moving through space. I'm not sure on the arm and knee position. It doesn't quite come across as dynamic as it should be. Maybe the arms dragging more behind the hands 'chopping' through the air?